Dynamic Characterization Method for Long-Term Performance of Antibacterial Materials

Abstract

The present invention relates to the technical field of antibacterial materials. Specifically, it relates to a dynamic characterization method for the long-term performance of antibacterial materials, which comprises the following steps: First, calculate the usage time of the antibacterial material based on the total mass, average sustained-release rate, and water solubility concentration of the sustained-release antibacterial material; Second, use a timing circuit to achieve a dynamic display function, and qualitatively indicate with LED lights of different colors at different time stages. When the water solubility concentration of the antibacterial material does not meet the specified antibacterial requirements, it shows red to prompt the replacement of the material. The present invention can intuitively and conveniently dynamically characterize the long-term performance of antibacterial materials.

Description

Technical Field

[0001] The present invention relates to the technical field of antibacterial materials, and in particular, to a dynamic characterization method for the long-term performance of antibacterial materials. Background Art

[0002] Antibacterial materials mainly refer to materials that inherently have antibacterial properties or can be antibacterial and bacteriostatic after antibacterial treatment. The active ingredients in the materials are highly sensitive to microorganisms such as molds, bacteria, and viruses, and kill or inhibit the reproduction of surface microorganisms through chemical reactions and physical effects, thereby playing an antibacterial role. In addition to antibacterial materials used in the conventional biomedical field, there are more and more textile antibacterial and antiviral materials, which can be applied to cleaning household appliances, home interior decoration, automotive interior decoration, antibacterial clothing, and non-woven antibacterial materials. For example, antibacterial and antiviral masks, antibacterial socks, etc.

[0003] Antibacterial materials are divided into immediate-effect and long-term materials. Immediate-effect antibacterial materials work quickly but have a short duration. Long-term antibacterial materials are materials that can persistently inhibit the reproduction of bacteria, fungi, and other microorganisms. By slowly and stably releasing antibacterial active substances, they can continuously release and inhibit the growth of microorganisms. They are widely used in fields such as household appliances, medical treatment, home, and public places. It can not only effectively reduce bacterial cross-infection, but also keep the environment clean and hygienic, and play a positive role in promoting people's health.

[0004] For antibacterial products, on the basis of scientifically evaluating antibacterial performance, how to visually characterize antibacterial performance is the current direction of effort in the industry. Microscopic (microscope) observation is a good way to visually characterize antibacterial performance. However, because microscopic (microscope) observation requires professional instruments (optical microscopes) and can only be achieved in professional laboratories (biological secondary safety laboratories), for the general public, these professional conditions are not available. Antibacterial test reports are another effective way to visually express antibacterial performance. Antibacterial test reports are mainly issued by third-party antibacterial testing laboratories with CMA and CNAS qualifications, and have very clear data descriptions of antibacterial performance. However, the content of antibacterial test reports has a certain degree of professionalism, and it is difficult for the general public to accurately interpret antibacterial test reports. Summary of the Invention

[0005] The content of the present invention is to provide a dynamic characterization method for the long-term performance of antibacterial materials, which can intuitively and conveniently dynamically characterize the long-term performance of antibacterial materials.

[0006] According to a dynamic characterization method for the long-term performance of antibacterial materials of the present invention, it includes the following steps:

[0007] 1. Calculate the usage time of the antibacterial material according to the total mass, average release rate, and water solubility concentration of the sustained-release antibacterial material;

[0008] 2. Implement the dynamic display function using a timing circuit, and qualitatively indicate with LED lights of different colors at different time stages. When the dissolved water concentration of the antibacterial material does not meet the specified antibacterial requirements, display red to prompt the replacement of the material.

[0009] Preferably, the calculation formula for the usage time is:

[0010] ;

[0011] Where: M represents the total mass of the material; γ represents the proportion of the antibacterial component; V represents the volume of the aqueous solution; λ represents the average sustained release rate of the antibacterial component; T represents the antibacterial duration, i.e., the usage time; η represents the dissolved water concentration of the antibacterial component.

[0012] Preferably, different time stages are divided into multiple segments for color display through preset percentages, indicating that the antibacterial material is in different usage stages.

[0013] Preferably, the timing circuit includes multiple timers, and each timer is connected in series with an LED light of a different color. The last timer is connected to a red LED light, and red indicates that the specified antibacterial requirements are not met and the material needs to be replaced.

[0014] The characterization method provided by the present invention can be applied to the long-term performance display of different antibacterial materials, which is very intuitive, convenient, and easily acceptable to the general public. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a flowchart of a method for dynamically characterizing the long-term performance of an antibacterial material in an embodiment;

[0016] Figure 2 is a schematic diagram of the timing circuit in an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0017] To further understand the content of the present invention, the present invention will be described in detail in combination with the drawings and embodiments. It should be understood that the embodiments are only for explaining the present invention and not for limiting it.

[0018] Embodiment

[0019] As Figure 1 shown, this embodiment provides a method for dynamically characterizing the long-term performance of an antibacterial material, which includes the following steps:

[0020] 1. Calculate the usage time of the antibacterial material based on the total mass, average release rate, and water solubility concentration of the sustained-release antibacterial material;

[0021] The calculation formula for the usage time is:

[0022] ;

[0023] Where: M represents the total mass of the material; γ represents the proportion of the antibacterial component; V represents the volume of the aqueous solution; λ represents the average release rate of the antibacterial component; T represents the antibacterial duration, i.e., the usage time; η represents the water solubility concentration of the antibacterial component.

[0024] λ and η are related to the characteristics of the antibacterial material, γ and are related to the specifications of the antibacterial product. For a certain fixed product, they are basically constant values. V is related to the user's usage conditions, such as water consumption and water change frequency, that is, V is determined according to the user's needs. This dynamic characterization scheme calculates the available usage time based on the requirement that η must be greater than the minimum effective concentration η0 of the antibacterial component.

[0025] 2. Use a timing circuit to achieve the dynamic display function, qualitatively indicate with LED lights of different colors at different time stages, display red when the water solubility concentration of the antibacterial material does not meet the specified antibacterial requirements, and prompt to replace the material. The dynamic display can expand other functions, such as displaying concentration, time, material type, sound, etc.

[0026] At different time stages, it is divided into multiple segments for color display through preset percentages, indicating that the antibacterial material is in different usage stages.

[0027] For example Figure 2 as shown, the timing circuit includes multiple timers, 3 in the figure. Each timer is connected to an LED light of a different color, namely green, blue, and yellow; the last timer is connected to a red LED light, and red indicates that the specified antibacterial requirements are not met and the material needs to be replaced. In this embodiment, color display is performed according to the performance indicators, and the display color can be changed according to requirements. Figure 2The specific working mode in it is as follows: When starting, the power supply is turned on, and the green LED light is on. At the same time, Timer 1 works. After the timing ends, the green LED light goes off, and the blue LED light is on. At the same time, Timer 2 works. After the timing ends, the blue LED light goes off, and the yellow LED light is on. At the same time, Timer 3 works. After the timing ends, the yellow LED light goes off, and the red LED light is on, indicating to replace the antibacterial material. The number of segments can be set according to specific requirements, and the working mode is similar. The arrow between the timers indicates connection and cooperation. When a timer works, the LED light connected to this timer is powered on, and the subsequent timer is not powered on. After the timing ends, the LED light connected to this timer is powered off, and the subsequent timer is powered on, and then the subsequent timer controls the corresponding LED light.

[0028] The characterization method provided in this embodiment can be applied to the long-term performance display of different antibacterial materials, which is very intuitive, convenient, and easily accepted by the general public.

[0029] The above has schematically described the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments to this technical solution without creative work without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A dynamic characterization method for the long-term performance of an antibacterial material, characterized in that: It includes the following steps: First, calculate the usage time of the antibacterial material according to the total mass, average sustained-release rate, and water-soluble concentration of the sustained-release antibacterial material; The calculation formula for the usage time is: η = (M·γ - λ·V·T) / V Where: M represents the total mass of the material; γ represents the proportion of the antibacterial component; V represents the volume of the aqueous solution; λ represents the average sustained-release rate of the antibacterial component; T represents the antibacterial duration, that is, the usage time; η represents the water-soluble concentration of the antibacterial component; Second, use a timing circuit to achieve a dynamic display function, qualitatively indicate with LED lights of different colors at different time stages, and display red when the water-soluble concentration of the antibacterial material does not meet the specified antibacterial requirements to prompt the replacement of the material; The different time stages are divided into multiple segments for color display through preset percentages, indicating that the antibacterial material is in different usage stages; The timing circuit includes multiple timers, each timer is connected in series with an LED light of a different color, and the last timer is connected to a red LED light. Red indicates that the specified antibacterial requirements are not met and the material needs to be replaced.

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